Hernan hernan604

Naive Bayes usando Perl e MongoDB

Introdução

Um classificador naive Bayes é provavelmente o exemplo mais tradicional para ilustrar "Inteligência Artificial" na prática. É bastante utilizado na eterna tarefa de discernir entre spam e não-spam (ham).

JavaScript Crypto Libraries

I start with a list and plan to create a comparison table.

WebCryptoAPI

http://www.w3.org/TR/WebCryptoAPI/

This specification describes a JavaScript API for performing basic cryptographic operations in web applications, such as hashing, signature generation and verification, and encryption and decryption. Additionally, it describes an API for applications to generate and/or manage the keying material necessary to perform these operations. Uses for this API range from user or service authentication, document or code signing, and the confidentiality and integrity of communications.

	# Define lua functions
	init_by_lua_block {
	function is_dir(path)
	local f = io.open(path, "r")
	if not f then
	return false
	end
	local ok, err, code = f:read(1)
	f:close()
	return code == 21

	0-25 R : Time flies like an arrow. <- S ::= NP VP period
	0- 4 R : Time <- NP ::= NN
	# token
	0- 4 T : Time <- NN
	# glade 0- 4: Time ---
	- (NP (NN Time))

	5-24 R : flies like an arrow <- VP ::= VBZ PP
	# token
	5-10 T : flies <- VBZ

	FROM: https://github.com/tendant/graphql-clj/blob/master/src/graphql.bnf

	Document ::= <Ignored> Definition+ <Ignored>
	Definition ::= TypeSystemDefinition \| OperationDefinition \| FragmentDefinition
	OperationDefinition ::= <Ignored> OperationType? <Ignored> Name? <Ignored> VariableDefinitions? <Ignored> Directives? SelectionSet
	Query ::= "query"
	Mutation ::= "mutation"
	OperationType ::= Query \| Mutation
	VariableDefinitions ::= <"("> VariableDefinition+ <")">
	SourceCharacter ::= #"[\x{9}\x{A}\x{D}\x{20}-\uFFFF]"

	package main

	import (
	"log"
	"os"
	"time"

	"github.com/fsnotify/fsnotify"
	)

	/*

	this is a pubsub pattern example.
	the pubsub mechanism is in PubSub.
	any class can use it by creating an instance ie:

	// the class that accepts subscribers must implement PubSub:
	//"MyClass" definitions:
	//...
	this.pubsub = new PubSub();

	ffmpeg -ss $INPUT_START_TIME -t $LENGTH -i $INPUT_FILENAME \
	-vf "fps=$OUTPUT_FPS,scale=$OUTPUT_WIDTH:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse" \
	-loop $NUMBER_OF_LOOPS $OUTPUT_FILENAME

	# Change these placeholders:
	# * $INPUT_START_TIME - number of seconds in the input video to start from.
	# * $LENGTH - number of seconds to convert from the input video.
	# * $INPUT_FILENAME - path to the input video.
	# * $OUTPUT_FPS - ouput frames per second. Start with `10`.
	# * $OUTPUT_WIDTH - output width in pixels. Aspect ratio is maintained.

	#!/opt/perl

	use Mojolicious::Lite;
	use JSON;

	get '/' => sub {
	my $self = shift;

	$self->render("index");
	};

	#!/bin/sh
	#
	# chkconfig: 2345 55 25
	# Description: Nginx init.d script, put in /etc/init.d, chmod +x /etc/init.d/nginx
	# For Debian, run: update-rc.d -f nginx defaults
	# For CentOS, run: chkconfig --add nginx
	#
	### BEGIN INIT INFO
	# Provides: nginx
	# Required-Start: $all